An interactive log for students and parents in my Pre-Cal 30S class. This ongoing dialogue is as rich as YOU make it. Visit often and post your comments freely.

Tuesday, January 10, 2006

Super... (secret) SCRIBE!!!

Well today... Like OVER HALF THE CLASS WAS GONE!!! (doing an English exam) So... We fooled around and partied the hole class!!!! Hahahaha. Just kidding. Well we partied until I mentioned the scribe post... Then they elected me as scribe... Thanks guys... Robert... Hahaha Well anyways.. Today in Class.. We. Talked like forever... On math... and it was fun... Hehehe...

Anyways... We did questions... Hahaha... Questions on functions that we did yesterday.

After that we put some Function notes in or Handy Dandy Dictionary. Hahaha... (couldn't resist)

Functions

Function: A function is a rule that changes one number or expression (The Input) into another number or expression (The Output)The set of all possible inputs is called the domain.The set of all possible outputs is called the range.

Functions (as opposed to relations)Are rules that nave a special constraint:Each member of the domain (the inputs) is mapped to (can be changed into) only one number of the range (only one output).

Notation: f(x) means "the rule f is appilied to a number or expression x."Many-to-one Functions

Functions where more than one (many) members of the domain are mapped to a single (one) member of the range.